jquery点击改变class并toggle

<html>
<head>
<meta charset="utf-8">
<title></title>
<script type="text/javascript" src="http://www.w3school.com.cn/jquery/jquery-1.11.1.min.js"></script>
<style>
.bg1 {
    background-image:url(images/21.jpg);
    background-repeat:no-repeat;
    color:#0CF;
}
.bg2 {
    background-image:url(images/22.jpg);
    background-repeat:no-repeat;
    color:#F00;
}
</style>
<script type="text/javascript">
//参数para1:希望隐藏元素的id值
function toggle1(para1){
    if ($("#p2").attr("class")=="bg1")
    {
        $("#p2").attr("class","bg2");
    }
    else 
    {
        $("#p2").attr("class","bg1");
    }
    $("#"+para1).toggle();
}
</script>
</head>
<body>
<p id="p1">此处将显示或隐藏</p>
<p id="p2" class="bg1" onClick="toggle1('p1')" style="height:31px">点击此处显示或隐藏上面部分并更换自己的样式(包括背景图、字体等)</p>
</body>
</html>
原文地址:https://www.cnblogs.com/cag2050/p/5037670.html